利用 GIS 方法建立了数字高程模型（DEM），研究了子汇水面积的边界。
By means of GIS method, the digital elevation model(DEM)is established, the subcatchment boundaries are studied.
除了利用该模型来阐述数据架构工作的范围，您还可以利用它来建立知识的当前状态和正在进行或计划着的活动的范围的映象。
In addition to using this model for explaining the scope of data architecture work, you can use it to build a map of the current state of knowledge, and the scope of ongoing or planned activities.
详细设计文档：说明您的设计如何利用总体soa，并建立设计与应用程序编程模型。
Detailed design document: Explains how your design leverages the overall SOA and establishes a design and application programming model.
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